CN109037288B

CN109037288B - PMOLED and display screen

Info

Publication number: CN109037288B
Application number: CN201810859941.9A
Authority: CN
Inventors: 李允斌; 张志轩; 王存镀
Original assignee: Chip Wealth Technology Ltd
Current assignee: Chip Wealth Technology Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2021-01-08
Anticipated expiration: 2038-08-01
Also published as: CN109037288A

Abstract

The PMOLED and the display screen provided by the embodiment of the application comprise: the touch control device comprises an anode layer, a cathode layer, an organic light emitting layer and at least two touch control induction rods, wherein the organic light emitting layer is arranged between the anode layer and the cathode layer; the anode layer comprises a plurality of parallel anodes, the at least two touch sensing rods comprise a first touch sensing rod and a second touch sensing rod, the first end of each of the anodes is connected with the first touch sensing rod, and the second end of each of the anodes is connected with the second touch sensing rod. When the PMOLED display screen provided in the embodiment of the application is clicked by touch, an anode in the anode layer may sense the clicked specific anode, and the first touch sensing rod and the second touch sensing rod respectively connected to two ends of the anode may obtain a specific touch point on the anode according to a difference between capacitance values of the first touch sensing rod and the anode, so as to obtain an accurate touch position.

Description

PMOLED and display screen

Technical Field

The application relates to the field of semiconductors, in particular to a PMOLED and a display screen.

Background

PMOLEDs typically include an anode layer, a cathode layer, and an organic light emitting layer, and due to the structural characteristics of PMOLEDs, an anode in the anode layer on the upper layer of the panel almost completely blocks a cathode below the anode layer, so that when a PMOLED is clicked, a specific anode in the anode layer can sense a touch, but a cathode in the cathode layer below the anode layer cannot sense a touch easily, and thus the precise position of a touch cannot be known accurately.

Content of application

In view of this, the present application provides a PMOLED and a display screen.

In a first aspect, an embodiment of the present application provides a PMOLED, including: the touch control device comprises an anode layer, a cathode layer, an organic light emitting layer and at least two touch control induction rods, wherein the organic light emitting layer is arranged between the anode layer and the cathode layer; the anode layer comprises a plurality of parallel anodes, the at least two touch sensing rods comprise a first touch sensing rod and a second touch sensing rod, a first end of each of the anodes keeps a first preset distance from the first touch sensing rod, and a second end of each of the anodes keeps a second preset distance from the second touch sensing rod.

In one possible design, an insulating layer is disposed between the first end of each of the plurality of anodes and the first touch sensing bar.

In one possible design, an insulating layer is disposed between the second end of each of the plurality of anodes and the second touch sensing bar.

In one possible design, the first touch sensing bar comprises a first sub sensing bar and a second sub sensing bar, and an axis of the first sub sensing bar is coincident with an axis of the second sub sensing bar; a first end of at least one anode in the plurality of anodes keeps a first preset distance from the first sub-induction rod; the first end of the anode which is not connected with the first sub-induction rod in the plurality of anodes keeps a first preset distance with the second sub-induction rod.

In one possible design, the second touch sensing bar includes a third sub sensing bar and a fourth sub sensing bar, and an axis of the third sub sensing bar coincides with an axis of the fourth sub sensing bar; a second end of at least one anode in the plurality of anodes keeps a second preset distance from the third sub-induction bar; and a second end of an anode which is not connected with the third sub-induction rod in the plurality of anodes keeps a second preset distance with the fourth sub-induction rod.

In one possible design, the touch sensing layer further includes a plurality of third touch sensing bars, and each of the third touch sensing bars is respectively kept at a third preset distance from each of the plurality of anodes.

In one possible design, an insulating layer is disposed between each of the plurality of third touch sensing bars and each of the plurality of anodes.

In one possible design, the plurality of third touch sensing bars are disposed in parallel, and the plurality of anodes and the plurality of third touch sensing bars form a first preset angle.

In one possible design, the cathode layer includes a plurality of cathodes parallel to each other, and the plurality of anodes are at a second predetermined angle to the plurality of cathodes.

In a second aspect, the present application provides a display screen, including the above-mentioned PMOLED.

The PMOLED and the display screen provided by the embodiment of the application have the beneficial effects that:

the embodiment of the application provides a PMOLED and display screen, includes: the touch control device comprises an anode layer, a cathode layer, an organic light emitting layer and at least two touch control induction rods, wherein the organic light emitting layer is arranged between the anode layer and the cathode layer; the anode layer comprises a plurality of parallel anodes, the at least two touch sensing rods comprise a first touch sensing rod and a second touch sensing rod, a first end of each of the anodes keeps a first preset distance from the first touch sensing rod, and a second end of each of the anodes keeps a second preset distance from the second touch sensing rod. When the PMOLED display screen provided in the embodiment of the application is clicked by touch, an anode in the anode layer may sense the clicked specific anode, and the first touch sensing rod and the second touch sensing rod respectively connected to two ends of the anode may obtain a specific touch point on the anode according to a difference between capacitance values of the first touch sensing rod and the anode, so as to obtain an accurate touch position.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

For a clearer explanation of the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of a PMOLED provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of one embodiment of a PMOLED provided in the examples of the present application;

FIG. 3a shows a side view of a PMOLED provided by an embodiment of the present application;

FIG. 3b shows a side view of one embodiment of a PMOLED provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another specific implementation of a PMOLED provided in the examples of the present application;

fig. 5 shows a side view of one embodiment of the PMOLED shown in fig. 4.

Icon: a PMOLED 100; an anode layer 110; an anode 111; a cathode layer 120; a cathode 121; an organic light emitting layer 130; a touch sensing bar 140; a first touch sensing bar 141; a first sub-sensor bar 1411; a second sub-sensor bar 1412; a second touch sensing bar 142; a third sub-inductor bar 1421; a fourth sub-inductor bar 1422; an insulating layer 150; a touch sensing layer 160; a third touch sensing bar 161; a glass layer 170.

Detailed Description

Examples

Referring to fig. 1 in particular, fig. 1 shows a PMOLED 100 provided in an embodiment of the present application, where the PMOLED 100 includes an anode layer 110, a cathode layer 120, an organic light emitting layer 130, and at least two touch sensing bars 140. The organic light emitting layer 130 is disposed between the anode layer 110 and the cathode layer 120, as shown in fig. 3a and fig. 3 b.

The anode layer 110 includes a plurality of anodes 111 parallel to each other, the cathode layer 120 includes a plurality of cathodes 121 parallel to each other, and the plurality of anodes 111 and the plurality of cathodes 121 form a second predetermined angle; specifically, the anode 111 and the cathode 121 are perpendicular to each other, and the intersection of the cathode 121 and the anode 111 is provided with a light emitting unit forming a pixel, i.e., a light emitting portion, and a current is applied to the selected cathode 121 and anode 111, thereby driving the corresponding pixel to emit light.

The organic light emitting layer 130 includes a plurality of light emitting cells for emitting white light, a plurality of anodes 111 of the anode layer 110 for reflecting light, and the plurality of anodes 111 correspond to the plurality of light emitting cells one to one.

The touch sensing bar 140 may specifically include a first touch sensing bar 141 and a second touch sensing bar 142, each anode 111 of the plurality of anodes 111 is a strip anode 111, a first end of the strip anode 111 is spaced apart from the first touch sensing bar 141 by a first predetermined distance, and a second end of the strip anode 111 is spaced apart from the second touch sensing bar 142 by a second predetermined distance. Specifically, a first end of each of the plurality of anodes 111 may be connected to the first touch sensing bar 141 through the insulating layer 150, and a second end of each of the plurality of anodes 111 may be connected to the second touch sensing bar 142 through the insulating layer 150. An insulating layer may be disposed between the first end of each of the plurality of anodes and the first touch sensing bar, and an insulating layer may be disposed between the second end of each of the plurality of anodes and the second touch sensing bar.

Parasitic capacitances can be formed between each anode 111 of the plurality of anodes 111 and the first touch sensing bar 141 and between each anode 111 and the second touch sensing bar 142, when the PMOLED 100 is clicked, the clicked specific anode 111 can be sensed in the anode layer 110, and then, according to the difference between the capacitance values of the parasitic capacitances of the anode 111 and the first touch sensing bar 141 and the capacitance value of the parasitic capacitance of the second touch sensing bar 142, the specific position of the touch point on the anode 111 can be obtained through calculation of a preset algorithm, so as to obtain the accurate position of touch. Referring to fig. 3a and fig. 3b, a glass layer 170 is disposed on a side of the anode layer 110 away from the organic light emitting layer 130, and a user can specifically perform a touch operation by clicking the glass layer 170.

Referring to fig. 2, the first touch sensing bar 141 may include a first sub-sensing bar 1411 and a second sub-sensing bar 1412, axes of the first sub-sensing bar 1411 and the second sub-sensing bar 1412 coincide, a first preset distance is maintained between a first end of a part of the anodes 111 (e.g., four anodes 111 close to the first sub-sensing bar 1411 shown in fig. 2) of the plurality of anodes 111 and the first sub-sensing bar 1411, that is, air may be located between the first end of the part of the anodes 111 of the plurality of anodes 111 and the first sub-sensing bar 1411. Specifically, an insulating layer 150 may be disposed between the anode 111 and the first sub-sensing bar 1411. First ends of the anodes 111 (for example, four anodes 111 close to the second sub-sensing bar 1412 as shown in fig. 2) of the plurality of anodes 111 that are not connected to the first sub-sensing bar 1411 are kept at a first preset distance from the second sub-sensing bar 1412, and specifically, the first ends of the anodes 111 that are not connected to the first sub-sensing bar 1411 may be connected to the second sub-sensing bar 1412 through the insulating layer 150, as shown in fig. 3a and fig. 3 b.

The second touch sensing bar 142 includes a third sub-sensing bar 1421 and a fourth sub-sensing bar 1422, wherein an axis of the third sub-sensing bar 1421 coincides with an axis of the fourth sub-sensing bar 1422, and the third sub-sensing bar 1421 and a part of the anodes 111 (in fig. 2, four anodes 111 close to the third sub-sensing bar 1421) in the plurality of anodes 111 maintain a second preset distance, that is, air may be located between the part of the anodes 111 in the plurality of anodes 111 and the third sub-sensing bar 1421. Specifically, an insulating layer 150 may be disposed between the anode 111 and the third sub-sensing bar 1421. The second ends of the anodes 111 (the four anodes 111 close to the fourth sub-sensing bar 1422 in fig. 2) which are not connected to the third sub-sensing bar 1421 are kept at a second preset distance from the fourth sub-sensing bar 1422. An insulating layer 150 may also be disposed between the anode 111 and the fourth sub-sensing bar 1422 that are not connected to the third sub-sensing bar 1421, as shown in fig. 3a and 3 b.

The first sub-sensing bar 1411 and the third sub-sensing bar 1421 may determine specific positions of a part of the anodes 111 of the plurality of anodes 111, and the second sub-sensing bar 1412 and the fourth sub-sensing bar 1422 may determine specific positions of another part of the anodes 111 of the plurality of anodes 111. The sensing manner of the structure shown in fig. 2 is similar to that of the structure shown in fig. 1, and thus, the detailed description thereof is omitted.

Referring to fig. 4 and 5, the PMOLED 100 provided in the embodiment of the application further includes a touch sensing layer 160, the touch sensing layer 160 includes a plurality of third touch sensing bars 161, each touch sensing bar 140 of the plurality of third touch sensing bars 161 and each of the plurality of anodes 111 are kept at a third preset distance, and an insulating layer 150 may be disposed between the plurality of third touch sensing bars 161 and the plurality of anodes 111.

The plurality of third touch sensing bars 161 are disposed in parallel, and a first predetermined angle is formed between the plurality of third touch sensing bars 161 and the plurality of anodes 111. Specifically, the first preset angle may be 90 degrees.

Referring to fig. 4, parasitic capacitances may be formed between each of the plurality of anodes 111 and the first touch sensing bar 141, the second touch sensing bar 142, and the plurality of third touch sensing bars 161, when the PMOLED 100 is clicked, a specific clicked anode 111 may be sensed in the anode layer 110, and then a specific position of the click may be obtained according to capacitance values of the parasitic capacitances of the anode 111 and the plurality of touch sensing bars 140, for example, in the plurality of touch sensing bars a, b, c, d, e, capacitance values of the touch sensing bars c, d, e are changed greatly, capacitance values of the touch sensing bars a, b are changed less, which indicates that the specific position of the click is within a range of the touch sensing bars c, d, e. Then, the accurate position of the click can be calculated according to the difference value of the capacitance values of the parasitic capacitances of the touch sensing stick c, the touch sensing stick d and the touch sensing stick e. Referring to fig. 5, a glass layer 170 is disposed on a side of the anode layer 110 away from the organic light emitting layer 130, and a user can specifically perform a touch operation by clicking the glass layer 170.

The material of the touch sensing bars 140 may be a conductor material, a semiconductor material, or a partially insulating material. The touch sensing bar 140 may be made of the same material as the anode 111 or the cathode 121.

The embodiment of the application provides a display screen, which comprises the PMOLED.

The embodiment of the application provides a PMOLED 100 and a display screen, including: the touch control panel comprises an anode layer 110, a cathode layer 120, an organic light emitting layer 130 and at least two touch control sensing rods 140, wherein the organic light emitting layer 130 is arranged between the anode layer 110 and the cathode layer 120; the anode layer 110 includes a plurality of parallel anodes 111, the at least two touch sensing bars 140 includes a first touch sensing bar 141 and a second touch sensing bar 142, a first end of each of the plurality of anodes 111 is a first predetermined distance from the first touch sensing bar 141, and a second end of each of the plurality of anodes 111 is a second predetermined distance from the second touch sensing bar 142. When the PMOLED 100 display screen provided in the embodiment of the application is clicked by touch, the anode 111 in the anode layer 110 can sense the specific clicked anode 111, and the first touch sensing bar 141 and the second touch sensing bar 142 respectively connected to two ends of the anode 111 can obtain a specific touch point on the anode 111 according to a difference between capacitance values of the first touch sensing bar and the anode 111, so as to obtain an accurate touch position.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A PMOLED, comprising: the touch control device comprises an anode layer, a cathode layer, an organic light emitting layer and at least two touch control induction rods, wherein the organic light emitting layer is arranged between the anode layer and the cathode layer;

the anode layer comprises a plurality of parallel anodes, the at least two touch sensing rods comprise a first touch sensing rod and a second touch sensing rod, a first end of each of the anodes keeps a first preset distance from the first touch sensing rod, and a second end of each of the anodes keeps a second preset distance from the second touch sensing rod;

the first touch sensing bar and the second touch sensing bar are arranged in parallel and are configured to: when the anode layer senses the clicked anode, the specific position of the touch point on the anode can be obtained according to the capacitance value of the parasitic capacitance of the anode and the first touch sensing bar and the difference between the capacitance values of the parasitic capacitance of the anode and the second touch sensing bar.

2. The PMOLED of claim 1, wherein an insulating layer is disposed between the first end of each of the plurality of anodes and the first touch-sensitive bar.

3. The PMOLED of claim 2, wherein an insulating layer is disposed between the second end of each of the plurality of anodes and the second touch-sensitive bar.

4. The PMOLED of any one of claims 1 to 3, wherein the first touch-sensitive bar comprises a first sub-sensitive bar and a second sub-sensitive bar, and an axis of the first sub-sensitive bar is coincident with an axis of the second sub-sensitive bar;

a first end of at least one anode in the plurality of anodes keeps a first preset distance from the first sub-induction rod;

the first end of the anode which is not connected with the first sub-induction rod in the plurality of anodes keeps a first preset distance with the second sub-induction rod.

5. The PMOLED of any one of claims 1 to 3, wherein the second touch-sensitive bar comprises a third sub-sensitive bar and a fourth sub-sensitive bar, and an axis of the third sub-sensitive bar is coincident with an axis of the fourth sub-sensitive bar;

a second end of at least one anode in the plurality of anodes keeps a second preset distance from the third sub-induction bar;

and a second end of an anode which is not connected with the third sub-induction rod in the plurality of anodes keeps a second preset distance with the fourth sub-induction rod.

6. The PMOLED of any one of claims 1 to 3, further comprising a touch sensing layer, wherein the touch sensing layer comprises a plurality of third touch sensing bars, and each of the plurality of third touch sensing bars is respectively kept at a third preset distance from each of the plurality of anodes.

7. The PMOLED of claim 6, wherein an insulating layer is disposed between each of the plurality of third touch-sensitive bars and each of the plurality of anodes.

8. The PMOLED of claim 6, wherein the plurality of third touch-sensing bars are disposed in parallel, and the plurality of anodes make a first predetermined angle with the plurality of third touch-sensing bars.

9. The PMOLED of claim 1, wherein the cathode layer includes a plurality of cathodes parallel to each other, the plurality of anodes being at a second predetermined angle to the plurality of cathodes.

10. A display screen comprising a PMOLED as claimed in any one of claims 1 to 9.